diff options
| author | Anup Patel <anup.patel@wdc.com> | 2020-01-17 18:09:49 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-01-22 12:13:40 +0530 |
| commit | 766850222af4c39a52acf1fb12a97f2a42747d32 (patch) | |
| tree | b8f2058907a2f3f74a047826f89d09835f037dfe /lib/sbi/sbi_ecall.c | |
| parent | 37923c4a66180b2f7881d959cd631038e81dbfec (diff) | |
lib: Factor-out SBI legacy extension
This patch factor-out SBI legacy extension into its own source
for better modularity of SBI implementation.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Diffstat (limited to 'lib/sbi/sbi_ecall.c')
| -rw-r--r-- | lib/sbi/sbi_ecall.c | 103 |
1 files changed, 1 insertions, 102 deletions
diff --git a/lib/sbi/sbi_ecall.c b/lib/sbi/sbi_ecall.c index 1c49d79..23a6c82 100644 --- a/lib/sbi/sbi_ecall.c +++ b/lib/sbi/sbi_ecall.c @@ -7,20 +7,16 @@ * Anup Patel <anup.patel@wdc.com> */ -#include <sbi/sbi_console.h> #include <sbi/sbi_ecall.h> #include <sbi/sbi_ecall_interface.h> #include <sbi/sbi_error.h> #include <sbi/sbi_ipi.h> #include <sbi/sbi_platform.h> -#include <sbi/sbi_system.h> #include <sbi/sbi_timer.h> #include <sbi/sbi_tlb.h> #include <sbi/sbi_trap.h> -#include <sbi/sbi_unpriv.h> #include <sbi/sbi_hart.h> #include <sbi/sbi_version.h> -#include <sbi/riscv_asm.h> #define SBI_ECALL_VERSION_MAJOR 0 #define SBI_ECALL_VERSION_MINOR 2 @@ -36,22 +32,6 @@ u16 sbi_ecall_version_minor(void) return SBI_ECALL_VERSION_MINOR; } -static int sbi_load_hart_mask_unpriv(struct sbi_scratch *scratch, ulong *pmask, - ulong *hmask, struct sbi_trap_info *uptrap) -{ - ulong mask = 0; - - if (pmask) { - mask = sbi_load_ulong(pmask, scratch, uptrap); - if (uptrap->cause) - return SBI_ETRAP; - } else { - mask = sbi_hart_available_mask(); - } - *hmask = mask; - return 0; -} - static int sbi_ecall_base_probe(struct sbi_scratch *scratch, unsigned long extid, unsigned long *out_val) @@ -245,87 +225,6 @@ static struct sbi_ecall_extension ecall_rfence = { .handle = sbi_ecall_rfence_handler, }; -static int sbi_ecall_0_1_handler(struct sbi_scratch *scratch, - unsigned long extid, unsigned long funcid, - unsigned long *args, unsigned long *out_val, - struct sbi_trap_info *out_trap) -{ - int ret = 0; - struct sbi_tlb_info tlb_info; - u32 source_hart = sbi_current_hartid(); - ulong hmask = 0; - - switch (extid) { - case SBI_EXT_0_1_SET_TIMER: -#if __riscv_xlen == 32 - sbi_timer_event_start(scratch, - (((u64)args[1] << 32) | (u64)args[0])); -#else - sbi_timer_event_start(scratch, (u64)args[0]); -#endif - break; - case SBI_EXT_0_1_CONSOLE_PUTCHAR: - sbi_putc(args[0]); - break; - case SBI_EXT_0_1_CONSOLE_GETCHAR: - ret = sbi_getc(); - break; - case SBI_EXT_0_1_CLEAR_IPI: - sbi_ipi_clear_smode(scratch); - break; - case SBI_EXT_0_1_SEND_IPI: - ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0], - &hmask, out_trap); - if (ret != SBI_ETRAP) - ret = sbi_ipi_send_smode(scratch, hmask, 0); - break; - case SBI_EXT_0_1_REMOTE_FENCE_I: - tlb_info.start = 0; - tlb_info.size = 0; - tlb_info.type = SBI_ITLB_FLUSH; - tlb_info.shart_mask = 1UL << source_hart; - ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0], - &hmask, out_trap); - if (ret != SBI_ETRAP) - ret = sbi_tlb_request(scratch, hmask, 0, &tlb_info); - break; - case SBI_EXT_0_1_REMOTE_SFENCE_VMA: - tlb_info.start = (unsigned long)args[1]; - tlb_info.size = (unsigned long)args[2]; - tlb_info.type = SBI_TLB_FLUSH_VMA; - tlb_info.shart_mask = 1UL << source_hart; - ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0], - &hmask, out_trap); - if (ret != SBI_ETRAP) - ret = sbi_tlb_request(scratch, hmask, 0, &tlb_info); - break; - case SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID: - tlb_info.start = (unsigned long)args[1]; - tlb_info.size = (unsigned long)args[2]; - tlb_info.asid = (unsigned long)args[3]; - tlb_info.type = SBI_TLB_FLUSH_VMA_ASID; - tlb_info.shart_mask = 1UL << source_hart; - ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0], - &hmask, out_trap); - if (ret != SBI_ETRAP) - ret = sbi_tlb_request(scratch, hmask, 0, &tlb_info); - break; - case SBI_EXT_0_1_SHUTDOWN: - sbi_system_shutdown(scratch, 0); - break; - default: - ret = SBI_ENOTSUPP; - }; - - return ret; -} - -static struct sbi_ecall_extension ecall_0_1 = { - .extid_start = SBI_EXT_0_1_SET_TIMER, - .extid_end = SBI_EXT_0_1_SHUTDOWN, - .handle = sbi_ecall_0_1_handler, -}; - static int sbi_ecall_vendor_probe(struct sbi_scratch *scratch, unsigned long extid, unsigned long *out_val) @@ -468,7 +367,7 @@ int sbi_ecall_init(void) ret = sbi_ecall_register_extension(&ecall_base); if (ret) return ret; - ret = sbi_ecall_register_extension(&ecall_0_1); + ret = sbi_ecall_register_extension(&ecall_legacy); if (ret) return ret; ret = sbi_ecall_register_extension(&ecall_vendor); |